Compact pressure causes a martensitic transformation of partially stabilized tetragonal bismuth-doped ZrO2 powders to the monoclinic phase, A similar effect is not observed when pelletization, followed by firing, of amorphous bismuth/ZrO2 is performed, The stress-induced transition has been monitored via X-ray diffractometry, Raman spectroscopy, and Fourier transform infrared reflectivity. Surface bismuth segregation, which involves few ionic planes, has been probed by angle-resolved X-ray photoelectron spectroscopy, The bismuth segregation enthalpy has been evaluated.
|Titolo:||Mechanically induced phase transformation and surface segregation in bismuth-doped tetragonal zirconia|
|Data di pubblicazione:||1998|
|Appare nelle tipologie:||1.1 Articolo in rivista|